list2followee.sh

#!/usr/bin/env bash

set -euo pipefail

if ! command -v twurl jq &>/dev/null; then
  echo "install twurl, jq"
  exit 1
elif ! [ -f ./.twurlrc ]; then
  echo "twurl authorize" >&2
  exit 1
fi

you=egpl0
list_id=1095823330366509056

twurl "/1.1/followers/ids.json?user_name=${you}&count=5000" |
  jq -r '.ids|join("\n")' > followed
twurl "/1.1/lists/members.json?list_id=${list_id}&count=5000" |
  jq -r '.users[].id' > member
sort target followed followed | uniq -u > target

t="$(wc -l <target)"
[ "$t" -gt 400 ] && echo "一日400フォローまでなので明日もよろしく"

c=1
head -400 target | while read i; do
  echo -n "[${c}/${t}: ${i}]"
  if twurl "/1.1/friendships/create.json" -d "user_id=${i}" |
     grep -q '"errors"'; then
     echo "=>NG"
  else
     echo "=>OK"
  fi
  sleep 3s
  ((c++))
done

rm -i followed member target